There are 9 red balls and 12 blue balls What is the number of red balls as a fraction of the total number of balls

A. 7 / 8

B. 1 / 2

C. 3 / 4

D. 1 / 3

3/7

Step-by-step explanation:

9= red balls

over the total number of balls which means 9+ 12= 21

9/21 or the lowest term 3/7

pero wala sa choices